What is Biology Good For?
H
elping A New Life Begin: In Vitro Fertilization

(This assignment is optional. Read this essay and answer the questions at the bottom for 3 extra credit points. It is not necessary to visit the links in the text unless you are interested in more information.)

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In vitro fertilization (IVF) is a fertility procedure first succeeded in 1978 by the late British gynecologist Dr. Patrick Steptoe and his co-researcher, embryologist Robert Edwards. Since then, the procedure has been further developed and fertilization outside the human body is now available throughout the Western world. In fact, more than 300 centers in North America alone practice IVF and over 40,000 babies worldwide have been born after IVF. [Image]

What is in IVF?

Simply stated, IVF involves removing eggs from a woman, fertilizing them in the laboratory culture dish (the name "test-tube baby" is actually a misnomer) and then transferring the fertilized eggs - now called "zygotes" - into the uterus a few days later.


Ultrasound of Follicles

 
Egg with two pronuclei

 
Eight cell Pre-embryo

Preparation for IVF:

Egg Retrieval


Egg Fertilization:

 

The four basic steps to fertilization:

1. Egg's metabolism must be turned on.
2. One sperm must penetrate the egg.
3. A barrier, which keeps other sperm out, must be erected.
4. Nuclei and chromosomes form the egg and sperm must unite.

 

 

 

Embryo Transfer:

This "What is Biology Good For" was researched and written by IUPUI student Jennifer Manske, as part of an undergraduate research project.

References
IVF ‚ In Vitro Fertilization.
IVF.com In Vitro Fertilization.
IVF.com Photo Gallery.
In Vitro Fertilization.


Questions: 3 points extra credit. Click on the links for more information! One sentence should be enough to answer each question . Once you hit 'submit', you will receive a Thank You confirmation page.

Please type your Student ID Number:
LAST name: FIRST Name:

1. What happens to any extra pre-embryos after IVF? List 1 possibility. (See p 4 in the link)
2. What is the
average cost (nationwide) for IVF?
3. What
structure in the ovaries do the eggs develop in?

You may change your mind as often as you wish. When you are satisfied with your responses click the SUBMIT button. You will receive a "THANK YOU" page as a confirmation that your response has been sent to me.
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